30230220157 has 2 divisors, whose sum is σ = 30230220158. Its totient is φ = 30230220156.

The previous prime is 30230220127. The next prime is 30230220173. The reversal of 30230220157 is 75102203203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28929247396 + 1300972761 = 170086^2 + 36069^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30230220157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30230220127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15115110078 + 15115110079.

It is an arithmetic number, because the mean of its divisors is an integer number (15115110079).

Almost surely, 2^30230220157 is an apocalyptic number.

It is an amenable number.

30230220157 is a deficient number, since it is larger than the sum of its proper divisors (1).

30230220157 is an equidigital number, since it uses as much as digits as its factorization.

30230220157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The spelling of 30230220157 in words is "thirty billion, two hundred thirty million, two hundred twenty thousand, one hundred fifty-seven".